Majewski stands at 204 cm (6" 8½") tall and weighs 140 kg (300 lb). On 25 July 2009 in Barcelona he threw a personal best of 21.64 m and few days later in DN Galan in Stockholm, Sweden he improved upon this with a throw of 21.95 m, a new Polish record. At the 2010 IAAF World Indoor Championships he threw a personal best and Polish indoor record of 21.20 m.
However, the level of competition was so high that this was only enough for fifth place behind a Canadian record-breaking Dylan Armstrong.
lieutenant was the first time in championships history that five men had gone beyond the 21 m mark. His 21-metre throw was beaten by a single centimetre as Andrei Mikhnevich took the title.
He had shoulder surgery in the latter half of the year. At the start of 2012 he broke his own Polish indoor record at the BW-Bank Meeting in Karlsruhe with a winning mark of 21.27 m.
His hobbies include basketball and playing video games.
Officer"s Cross of the Order of Polonia Restituta (4th Class) in 2009. Outdoor – 21.95 m (2009), national record
Indoor – 21.72 m (2012), national record
His best attempt was in Sweden DN Galan (2165 m, 2195 m, 2144 m, x, x, 2183 m).